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ScienceDaily: Earth & Climate News |
| Protein 'big bang' reveals molecular makeup for medicine and bioengineering Posted: 30 Jun 2021 01:37 PM PDT A new study maps the evolutionary history and interrelationships of protein domains, the subunits of protein molecules, over 3.8 billion years. |
| How plants quickly adapt to shifting environmental conditions Posted: 30 Jun 2021 10:50 AM PDT Researchers offers a new understanding of how gene activity directs plant growth, and how quickly plants respond to their environment -- with shifting light conditions triggering molecular changes in as little as five minutes. The findings provide insights into how to increase yield and safeguard world food production as climate change shrinks the planet's arable land. |
| Antibiotic-resistant bacteria found in cattle Posted: 30 Jun 2021 10:50 AM PDT New research shows that there may be more antimicrobial-resistant salmonella in our food animals than scientists previously thought. |
| Common errors in internet energy analysis Posted: 30 Jun 2021 09:54 AM PDT When it comes to understanding and predicting trends in energy use, the internet is a tough nut to crack. So say energy researchers in two recent articles that discuss the pitfalls that plague estimates of the internet's energy and carbon impacts. |
| Fecal records show Maya population affected by climate change Posted: 30 Jun 2021 09:54 AM PDT A new study has shown that the size of the Maya population in the lowland city of Itzan (in present-day Guatemala) varied over time in response to climate change. The findings show that both droughts and very wet periods led to important population declines. |
| Floods may be nearly as important as droughts for future carbon accounting Posted: 30 Jun 2021 09:54 AM PDT In a 34-year global analysis, researchers found that photosynthesis -- an important process for removing carbon dioxide from the atmosphere and storing it in soil -- was controlled by extreme wet events nearly as often as droughts in certain locations. |
| A future ocean that is too warm for corals might have half as many fish species Posted: 30 Jun 2021 08:54 AM PDT Predicting the potential effects of coral loss on fish communities globally is a fundamental task, especially considering that reef fishes provide protein to millions of people. A new study predicts how fish diversity will respond to declines in coral diversity and shows that future coral loss might cause a more than 40% reduction in reef fish diversity globally. |
| NIST laser 'comb' systems now measure all primary greenhouse gases in the air Posted: 30 Jun 2021 08:54 AM PDT Researchers at NIST have upgraded their laser frequency-comb instrument to simultaneously measure three airborne greenhouse gases -- nitrous oxide, carbon dioxide and water vapor -- plus the major air pollutants ozone and carbon monoxide. |
| Better method to predict offshore wind power Posted: 30 Jun 2021 08:54 AM PDT Researchers have developed a machine learning model using a physics-based simulator and real-world meteorological data to better predict offshore wind power. |
| Mixing it up: A low-cost way to make efficient, stable perovskite solar cells Posted: 30 Jun 2021 08:54 AM PDT By using a fluid mixing process instead of expensive, high-temperature fabrication methods, researchers may have demonstrated a pathway to producing flexible, printed solar cells on a cost effective, industrial scale. |
| New research lifts the clouds on land clearing and biodiversity loss Posted: 30 Jun 2021 08:54 AM PDT A new mathematical model has been developed to uncover land clearing when satellite imagery is obstructed by clouds. |
| Wildfire changes songbird plumage and testosterone Posted: 30 Jun 2021 06:13 AM PDT Following habitat-destroying wildfires, researchers found many male red-backed fairywrens failed to molt into their ornamental plumage, making them less attractive to potential mates. They also had lowered circulating testosterone, which has been associated with their showy feathers. The birds' fat stores and stress hormone corticosterone remained at normal levels. While the findings are specific to this songbird, they may have implications for other species that don special coloration for mating. |
| Turning plastic into foam to combat pollution Posted: 29 Jun 2021 01:13 PM PDT Researchers have developed a method to turn biodegradable plastic knives, spoons, and forks into a foam that can be used as insulation in walls or in flotation devices. The investigators placed the cutlery into a chamber filled with carbon dioxide. As pressure increased, the gas dissolved into the plastic. When they suddenly released the pressure in the chamber, the carbon dioxide expanded within the plastic, creating foaming. |
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